What is an exhaust system?
Your muffler is actually only one part of your exhaust system, which is responsible for moving toxic, burned gasoline fumes from your engine away from your car (and keeping things quiet, of course). You also have a series of pipes, a catalytic converter and a resonator, along with several other emission devices under there. Each one has a special function. Exhaust Manifold & Heat Riser This is the point where burned gases exit the engine. The heat riser (or heat control valve) closes during start-up to allow the engine to warm up on some vehicles. Exhaust Pipes These carry gases to other parts of the exhaust system. Catalytic Converter This converts harmful pollutants in the exhaust to harmless gases. A good convertor should last at least 50,000 miles, and it’s required by the law. Muffler This is what cuts down the noise. If you’re reading this out loud while you car is running, and you can’t hear yourself, there’s a problem! Resonator It’s another type of muffler that reduces noise,
